Red Hat Enterprise Linux OpenStack Platform 6: SR-IOV Networking – Part I: Understanding the Basics

Check out this blog post I wrote for Red Hat Stack on SR-IOV networking support introduced in RHEL OpenStack Platfrom 6. This is based on the Nova and Neutron work done at the upstream community for the OpenStack Juno release.

Red Hat Stack

Red Hat Enterprise Linux OpenStack Platform 6: SR-IOV Networking – Part I: Understanding the Basics

Red Hat Enterprise Linux OpenStack Platform 6 introduces support for single root I/O virtualization (SR-IOV) networking. This is done through a new SR-IOV mechanism driver for the OpenStack Networking (Neutron) Modular Layer 2 (ML2) plugin, as well as necessary enhancements for PCI support in the Compute service (Nova).

In this blog post I would like to provide an overview of SR-IOV, and highlight why SR-IOV networking is an important addition to RHEL OpenStack Platform 6. We will also follow up with a second blog post going into the configuration details, describing the current implementation, and discussing some of the current known limitations and expected enhancements going forward.

PCI Passthrough: The Basics

PCI Passthrough allows direct assignment of a PCI device into a guest operating system (OS). One prerequisite for doing this is that the hypervisor…

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